Hike north on the Appalachian Trail and the scenery slowly transforms. Rugged, steep ridgelines in Tennessee and Virginia soften into the broad summits and smooth peaks of Pennsylvania and New Jersey.

The hills of South Moravia have yielded thousands of Stone Age artifacts over decades of excavation, most of them anonymous ...

Over 2.4 billion years ago, Earth entered one of the most extreme climate events in its history — the Huronian Glaciation. For up to 300 million years, vast ice sheets covered the planet in what may ...

Through carbon dating, researchers have ruled that the artifacts are between approximately 11,700 and 12,900 years old, a time when Ice Age temperatures had returned after a brief warm period.

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A piece of sewn animal hide found in an Eastern Oregon cave may be one of the oldest known pieces of sewn clothing, dating ...

Archaeologists have identified the oldest known example of sewn hide, a small fragment of elk hide meticulously stitched with twisted fiber, dating back approximately 12,400 years. Found within Cougar ...

Hundreds of millions of Americans are presently besieged by a massive arctic blast and winter storm. Luckily for them, it will only be temporary. That wasn't the case 20,000 years ago... Between ...

Over this time, wolves have had to endure numerous changes in the planet’s climate. The cycles of the Ice Ages repeatedly changed their habitat and available prey, providing an insight into how modern ...